Extended argument number
Doodson number to which a 7th figure has been added, specifying whether the angular argument is associated with a positive or negative sine or cosine.
Falling tide
Period during which the water level falls.
FAQ
Frequently Asked Questions (or Foire Aux Questions in French).
FFT
Fast Fourier Transform. Technique for representing a time signal in the spectral domain.
Fix sphere
Representation system in which reference is made to celestial bodies by their direction on a sphere whose position is fixed with respect to the stars.
Flood current or flood
Current accompanying the rising tide.
Foreshore
Coastal strip between the levels achieved by the highest and lowest tides.
Generating force
Resultant of the gravitational attractive force exerted by celestial bodies at a point on the Earth and the inertial driving force of a reference base associated with the Earth.
Generating potential
Scalar magnitude from which the generating force is derived.
Geocentric zenith distance
Zenith distance with respect to the centre of the earth.Historical data or metadata: Tide gauge data in non-digital format
Geodetic coefficient
Element of the expression of the generating potential depending solely on the latitude.
Geographical coordinates
Terrestrial latitude and longitude.
Geoid
Equipotential surface of the Earth's gravitational field.
GLOSS
The Global Sea Level Observing System
GOES
Geostationary Operational Environmental Satellites
GPM
Grand Port MaritimeGrand Port Maritime (major maritime port)
Half tide
Means of high and low waters.
Harmonic analysis
Calculation of the harmonic constants of the tide.
Harmonic component
Elementary tide wave, defined by its frequency, amplitude and phase.
Harmonic constant
The amplitude and situation of a harmonic component are harmonic constants of the said component.